R-Car/Boards/Marzen
< R-Car
Introduction
This is the Wiki for the Renesas R-Car H1 Marzen board. Refer to the R-Car page for information about Renesas' R-Car SoC family.
Serial Console
Serial settings are 115200 8N1.
Booting Linux
* Kernel config: shmobile_defconfig * Kernel image: arch/arm/boot/uImage * DTB: arch/arm/boot/dts/r8a7779-marzen.dtb
Create a uImage with appended DTB:
make LOADADDR=0x60008000 uImage rm arch/arm/boot/zImage make zImage dtbs cat arch/arm/boot/dts/r8a7779-marzen.dtb >> arch/arm/boot/zImage $(cut -f 3- -d ' ' < arch/arm/boot/.uImage.cmd)
U-Boot boot command:
tftpboot 41000000 uImage bootm 41000000
Suspend-to-RAM
Procedure
The system can be suspended using:
echo mem > /sys/power/state
Wake-Up Sources
Suspend-to-RAM supports the following wake-up sources:
- gpio-keys: Wake-up using slide switches SW1-1 or SW1-2
- sh-sci (Serial): Disabled by default
Remote Control
Operation | Signal A | Pin A | Signal B | Pin B | Connector needed | Comments |
Reset | EXIO_RESETn_3 | CN23 pin 84 | GND | CN23 pin 87 | Samtec QTE-020 (or -040 or -060) | |
Wake-Up | SUB_TMS | CN7 pin 5 | GND | CN7 pin 12 | 2-pin female Mini-PV | Needs ARM: dts: marzen: Enable GP4_19 for wake-up from renesas-drivers#topic/board-farm |
ACC ON | TH8 | D12.0V | CN27 pin 1 or CN26 pin 1 or 2 |
1-pin female Mini-PV JST PHR-2 or PHR-7 |
Pull high via 10K resistor to power on |